99 Suburban programmer?

I threw this question out in the general tech section during a rant, but would like some more guidance.

I'm looking for a tuner, programmer, prom pak, chip - whatever they're called now. I put a Hypertech 'chip' in my '89 Sierra years ago, and always liked it. Now I'm looking to upgrade my '99 Suburban, specifically for towing power/torque. I'll get the Mustang out if I'm feeling frisky...

I looked at Hypertech Max Energy (32500), Superchips Flashpaq/Cortex (2865/2950), and the Edge EvoHT (26050). I'm not well versed in this stuff, and the truck is right at the cusp of the body/drivetrain changes, so the results I've found are a little confusing. What are your suggestions?

I don't have a smartphone, or a need for ipod hookups, or a movie player. Something simple that I can plug in and select a tune. That said, I do like the idea of seeing tranny temp or calibrating for larger tires.

I see that Superchips is a vendor on GMTC, and I'm leaning towards the Flashpaq; so, ya know, a little input?

I have a hypertech III for my beast, it gave my about 1mpg gain, but the biggest gain was in the rpms, quicker to gain especially when needing to pass someone on the highway, and is useful as I used to run bigger tires on it

please feel free to hit me up with any questions if you have any... and I can certainly get you hooked up with one of them if you decide to get one, since I sell them both, and I also offer a package deal that includes my custom tuning if you want as well, at a reduced cost to save you $$.

the diablosport tools have the most functionality, end-user adjustability of any handheld programmers, more complete/full data logging capability, plus the ability to have custom tuning done for them specifically for your truck, which you can't do with those others - you're stuck with whatever tunes they give you on them...